End member for the slats of fire-shutters.



W. M. BRUNST.

END MEMBER FOR THE SLATS OF FIRE S'HUTTERS.

APPLICATION FILED MAR.22, 1912.

1,081,202. Patented Dec. 9, 1913.

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nniTnn STATES PATENT ornion.

WILLIAM M. BRUNST, 9F COLUMBUS, OHIO, ASSIGNOR TO THE KINNEAR MANUFAC-TUBING COMPANY, OF COLUMBUS, OHIO, A CORPORATION 035 WEST VIRGINIA.

END MEMBER FOR THE SLATS OF FIRE-SHUTTERS.

Specification of Letters Patent.

Application filed March 22, 1912.

Patented Dec. 9,1913.

SeriaI No. 685,544.

To all whom it may concern:

Be it known that I, XVILLIAM M. BnUNsT, a citizen of the United States,residing at Columbus, in the county of Franklin and State of ()hio, haveinvented a certain new and useful Improvement in End Members for theSluts of Fire-Shutters, of which the following is a specification.

Some forms of looks or members applied to the ends of metallic slatsused in the construction of rolling fire resisting shutters knife intoeach other causing the roll to become larger at one end than the otherand preventing the free working of the shutters.

The chief object of the present invention is to provide an improvedconstruction of lock or end member whereby the diflioulty referred to isobviated and the invention is embodied in the construction herein shownand described and then pointed out in the claims.

In the accompanying drawings liigure 1 is a view in elevationillustrating the ends of two slats provided with such devices. Fig. 2 isa sectional view on the line w0a Fig. 1. Fig. 3 shows in section and endview a roller having a portion of fire shutter with the slats thereofequipped with such looks or end members.

In the views characters 5 designate the slats which are usuallytransversly concavoconvex and are ordinarily each provided withoppositely turned hook members 5 and 5 along its two edges forconnecting them together to form the flexible sheet constituting theshutter proper. The end lock comprises a head portion 6 having aconcaved shank 6 that fits in the concaved side of the slat at its endand is riveted thereto as seen at 7. The ends of the head of the endlock are extended laterally beyond the shank so as to form abutments toprevent the longitudinal movement of the slats when such locks areconnected to the opposite ends of alternate slats in the shutter as wellunderstood.

According to the present invention as herein shown I cast with or applyto the concavo-convex shank of the end lock a segmental web 8 extendingtransversely across the concave side of the shank of the end lock. Saidweb is located well within the edge of the shutter so that when theshutter is wound upon a roller the straight edge of the web shallcontact with the roller or if the roller be provided with collars 9 withsuch collar and support the slats out of contact therewith orsubstantially as shown in Fig. 8. Such webs also, when one coil issuperposed on another, support the slats and end locks out of contactwith each other in such manner as will prevent the knifing of the endlooks with each other and the irregular coiling of the shutterheretofore referred to. The ends of the slats between those providedwith end locks can be provided with members 10 like the shank of the endlocks, said members having no heads but having webs 8 like the webs 8 ofthe end locks. hen one coil of shutter is wound around another the webs8 and 8 being well within the inner edges of the shutter rest upon theconvex or outer sides of the slats of the next inner coil. When suchwebs have straight edges as depicted in Fig. 2 and stand vertically whenthe shutter is hanging, said. webs also serve if traveling in proximityto the wall of a guiding channel as seen at 11 Fig. 2, and by brokenlines Fig. I serve as an effective means for preventing the passage offlame and sparks around the edge of the shutter.

What I claim is- 1. An end member for a slat of a rolling fire shutterconsisting of a shank constructed to be applied to the inner side of theslat, said shank having a transverse projection or web remote from theends of the shank.

2. An end member for a slat of a rolling fire shutter consisting of ashank to be applied to the end portion of a slat and having a head orprojection at one end to afford an abutment to prevent longitudinalmovement in one direction of an adjoined slat and also a web orprojection inset and spaced from said head to contact with the side ofanother slat to keep the coils regularly disposed on versely of the slatand adapted to contact each other. with another slat and keep the coilsof the 3. A spacing member for a slat of a rollshutter spaced,substantially as described. ing fire shutter consisting of a metallicbody VILLIAM M. BRUNST. 5 having a concave side, said metallic body IVitnesses:

adapted to be applied to the slat and having RAY LOVELL, a Segmental webin its concave side trans- E. H. MOCLOUD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of laten'cs Washington, D. G.

